Question

我有最新的（git）版本的libqxt。我运行./configure并且运行正常，然后失败并出现此错误：

linking ../../lib/QxtWidgets.framework/QxtWidgets
ld: warning: directory not found for option '-L/usr/local/pgsql/lib'
ld: warning: directory not found for option '-L/tmp/qt-stuff-85167/source/qt-everywhere-opensource-src-4.8.1/Desktop/Qt/4.8.1/gcc/lib'
ld: warning: directory not found for option '-F/tmp/qt-stuff-85167/source/qt-everywhere-opensource-src-4.8.1/Desktop/Qt/4.8.1/gcc/lib'
Undefined symbols for architecture x86_64:
  "_CGSGetWindowProperty", referenced from:
      QxtWindowSystem::windowTitle(long)   in qxtwindowsystem_mac.o
ld: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status
make[1]: *** [../../lib/QxtWidgets.framework/QxtWidgets] Error 1
make: *** [sub-src-widgets-install_subtargets] Error 2

如果重要，我会使用OSX Mountain Lion。

谢谢！

Answer 1

似乎Qxt正在使用Mountain Lion中删除的一些私有Mac OS X API。以前版本的Mac OS X中没有记录CGSGetWindowProperty，所以我认为无论如何使用它都是不可靠的。

Answer 2

作为一个hacky修复，您可以删除CGSGetWindowProperty属性调用 - Qxt将编译，但当然QxtWindowSystem::windowTitle将无法正常工作。

diff --git a/src/widgets/mac/qxtwindowsystem_mac.cpp b/src/widgets/mac/qxtwindowsystem_mac.cpp
index 63cab38..de4a89c 100644
--- a/src/widgets/mac/qxtwindowsystem_mac.cpp
+++ b/src/widgets/mac/qxtwindowsystem_mac.cpp
@@ -89,11 +89,7 @@ QString QxtWindowSystem::windowTitle(WId window)
     // most of CoreGraphics private definitions ask for CGSValue as key but since
     // converting strings to/from CGSValue was dropped in 10.5, I use CFString, which
     // apparently also works.
-    err = CGSGetWindowProperty(connection, window, (CGSValue)CFSTR("kCGSWindowTitle"), &windowTitle);
-    if (err != noErr) return QString();
-
-    // this is UTF8 encoded
-    return QCFString::toQString((CFStringRef)windowTitle);
+    return QString();
 }

 QRect QxtWindowSystem::windowGeometry(WId window)

为了将来参考，您可以监控this issue in libqxt repository。

在mac osx中编译libqxt

2 个答案: